Phymetrix POA200 User manual

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Read this manual before using the analyzer. For personal and system
safety, and for optimum product performance, make sure you
thoroughly understand the contents before installing, using, or
maintaining this analyzer.
Please visit our website www.phymetrix.ca for other products that
may be applicable to your needs. Every effort has been made to ensure
accuracy in the contents of this manual. Should there be any doubts to
the accuracy of the content please contact the manufacturer. The
contents of this manual are subject to change without notice.
The instructions, procedures, drawings, specifications and concepts
contained in this manual are the property of Phymetrix Ltd., and shall
not be used as the basis for the manufacture or sale of apparatus or
services, or reproduced or copied or transmitted in any form or by any
means without written permission.

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Warranty
While the Phymetrix’s instrument has no problem in materials and
workmanship, the manufacturer shall have the right to make the
decision to repair or replace the analyzer. The battery is not within the
scope of this quality assurance. This warranty is effective from the
date of delivery to the original purchaser. If Phymetrix determines that
the equipment was defective, the warranty period is:
• one year from delivery for electronic or mechanical failures
If Phymetrix determines that the equipment was damaged by misuse,
improper installation, the use of unauthorized replacement parts, or
operating conditions outside the guidelines specified, the repairs are
not covered under this warranty.
Normal wear and tear, parts damaged by abuse, misuse, negligence or
accidents are specifically excluded from the warranty. Purchaser
acknowledges that in accepting and using this analyzer,
notwithstanding any contrary term or provision in the purchaser's
purchase order or otherwise, the only warranty extended by Phymetrix

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is the express warranty contained herein. Purchaser further
acknowledges that there are no other warranties expressed or implied,
including without limitation, the warranty of merchantability or fitness
for a particular purpose; that there are no warranties which extend
beyond the description of the face hereof; that no oral warranties,
representations, or guarantees of any kind have been made by
Phymetrix, its distributors or the agents of either of them, that in any
way alter the terms of this warranty; that Phymetrix and its
distributors shall in no event be liable for any consequential or
incidental damages, including but not limited to injury to the person or
property of the purchaser or others, and from other losses or expenses
incurred by the purchaser arising from the use, operation, storage or
maintenance of the product covered by the warranty; that Phymetrix’s
liability under this warranty is restricted to repair or replacement of
defective parts at Phymetrix sole option; and that Phymetrix neither
assumes nor authorizes any other person to assume for it any other
warranty. The warranty shall be void if serial numbers affixed to the
products are removed, obliterated or defaced.

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Return Policy / Procedures
If equipment malfunction is suspected or it is determined that the
analyzer needs recalibration, please contact York Instrument, who is
Phymetrix’s general agent in China.
Communicate the instrument model number, serial number,
application including oxygen concentration range being measured, and
the details of the problem.
If the analyzer needs factory service you will be issued a RMA and
shipping instructions.
The factory will diagnose the equipment and upon determining the
problem will notify you whether the terms of the warranty cover the
required repair. If the costs are not covered you will need to approve
the estimated cost in order to proceed with the repair.

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Contents
1 Introduction..................................................................................1
1.1 Panel description......................................................................... 5
1.2 Introduction of displays ..............................................................8
1.3 Function ....................................................................................13
1.4 Calibration.................................................................................13
2 Specifications...............................................................................17
3 Instrument instructions.................................................................18
3.1 Instructions.................................................................................18
3.2 Using the analyzer.....................................................................19
3.3 Powering up the analyzer..........................................................20
3.4 Ranging.....................................................................................21
3.5 Calibration.................................................................................22
3.6 Valves........................................................................................ 23
3.7 Sensor life .............................................................................24
3.8 Sample Line Connection........................................................... 25
3.9 Date storage ..............................................................................26
3.10 Battery charging and discharging............................................27

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3.11 Safety…………………………………………………..……. 27
4 Calibration Troubleshooting………………………….………….28
5 Maintenance&Sensor Replacement.............................................30
6 Troubleshooting........................................................................... 33
7 Safety of the analyzer ................................................................. 36
8 Safety of sensor............................................................................38
9 Glossary of Terms........................................................................ 42

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1 Introduction
POA200 portable oxygen analyzer can capture single data points and
also can monitor data continuously, and applicabl in all occasions
when an accurate oxygen concentration measurement is required. It is
widely used in many different sectors of the economy. Such as
combustion efficiency analysis , gas blending, breathing apparatus,
compost monitoring and food storage monitoring, etc.
Standard equipment includes:
POA 200 Portable Analyzer
Stainless Steel Quick Disconnect Fittings
Power Adapter
Manual
A Shoulder Strap
Carrying Case

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Options:
Stainless steel sleeve
FPT pipe
Printer function
Software
Warning: DO NOT turn on the "bypass/sample
gas " valve before there is low concentration oxygen flow
to the analyzer. In other words: Never expose the oxygen
sensor to the air, this will greatly reduce the life of the
sensor, or even damage the oxygen sensor!

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Analyzer performance characteristics:
POA200 oxygen analyzer adopts a special weak acidity
electrochemical sensor. In its measuring range the sensor is linear
and therefore, measuring oxygen concentration is very stable
with a very wide measuring range: 0-10ppm and 0-10000ppm.
The resolution for the high quality LCD screen has a 320 * 240
color high-definition screen, and also shows the oxygen density,
maximum and minimum values, the total time of measurement,
the time difference, measurement process curve, the power and
the current time. Furthermore, it can also display the
measurement process curve, which will provide a clear and
reliable process analysis data for the users.
Automatic temperature compensation is corrected for the full
range, making the instruments more adaptable to harsh
environments..
A variety of measurement settings, users can choose one
appropiate to their needs.
It can switch interface in between English and Chinese according

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to the users’ needs.
The analyzer is small and portable, making it comfortable to
service multiple locations on site.

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1.1 Panel description
Front view：⑦⑧
①②③④⑤⑥
Figure 1
The front panel has a high definition LCD screen, four touch buttons,
a special 4-way valve, a flow adjusting valve, and an observation
window to monitor the flow on the flowmeter.
6流量计

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Functions of front panel：
No.
Name
Funcion
1
Power/Dimness
adjust button
Hold this button to power on or power off; Quick
presses will adjust the screen light.When monitoring for
long periods, you can dim the screen to save power.
2
Up/calibration
button
Only in the measuring interface you can perform the
calibration operation, all other interfaces scrolls up.
3
Down/clear curve
button
In the measurement interface you can eliminate the
displayed curve, all other interfaces scrolls down
4
Confirm/save
button
Function keys, long press will save your data, short
press to confirm.
5
Flow adjusting
needle valve
Adjust gas flow
6
Flowmeter
Display the gas flow, a range of 0.2 to 2, the unit is
SCFH
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By pass/sample
4-way valve
ON, allow sample gas to bypass to exhaust
port ,otherwise allows the sample gas to flow via the
sensor
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Display screen
Displays the concentration of oxygen, process time,
minimum and maximum difference, the current time,
power and other parameters
Table 1

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Back View：
Figure 2
Warning: Never open the sensor hermetic seal,
unless you are replacing the sensor. Never expose the
oxygen sensor to air, this will greatly reduce the life of the
sensor, or even damage the oxygen sensor!
Gas sample
input
Gas sample
exhaust
Sensor hermetic seal
Power source hermetic seal

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1.2 Introduction of displays
Press the "Confirm" button, the following
Interface will be shown:
You can use other functions on using the UP and DOWN button.
1. About POA200
The following interface will be displayed after pressing the “confirm”
button

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You can see the system information.
2 Date/Time
The following interface will be displayed after pressing the “Confirm”
button

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You can set up the correct date and time by using the UP and DOWN
button.
3. Language
The following interface will be displayed after pressing the
“Confirm” button.
You can use either English or Chinese
4. Interval Set
The following interface will be displayed after pressing the “Confirm”
button.

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You can set the average time of the measuring intervals
5. Display A：The following screen will be shown after pressing the
“Confirm” button.
Displaying the maximum and minimum values of Oxygen

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concentration, or the maximum and minimum difference, testing time
and process parameters such as displaying the curve.
6. Display B：The following interface will be displayed after pressing
the “Confirm” button.
Displaying the maximum and minimum values of Oxygen
concentration, the maximum and minimum difference or the average
etc.
You can then choose from the following steps:
7. Save set :You can set up automatic storage intervals
8. Print: This is an optional function, if you need this, please contact
us for more info.

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9. Return: return to previous menu.
1.3 Function
1. Turn on the analyzer, the display will appear. Please wait
approximately 15S before beginning to measure;
2. Make sure the Sample/Bypass valve is in the "OFF"position.
3. Connect the sample gas into the ”Quick Connect” fitting located on
the backside of analyzer.
4. Adjust the sample gas flow with the needle valve between 1.0 to 2.0
SCFH .
5. Allow approximately 1-2min time for the gas to purge the lines.
6. Rotate the Sample/Bypass valve to "ON" so gas flows to the sensor.
7. Please wait for a few minutes for oxygen readings to stabilize.
8. Then, rotate the Sample/Bypass valve to "OFF".It can keep the
oxygen sensor in airtight condition by disconnecting the In/Out Gas
pots.
9. Disconnect the sample line.
10. Calibration: Introduced in Section 1.4.
11. Use the data storage function, hold "Confirm/Save" button for

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about a second, the data will be saved automatically.
12. Download the data stored in analyzer. Open the "power/data
connection hermetic seal", connect the USB data connection and
instrument computer connections. Note that this operation must be
done in a safe area. The USB module must be purchased seperately, if
necessary, please contact us for more info.
13. Charge the unit by opening the "power/data connection hermetic
seal", on the power cord for instrument charging. Please connect the
supplied power adaptor to the charging port on the back end of the
analyzer. When the instrument is charging it will display the status on
screen. Note that the charging process must be in a safe area.